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Altera_Forum
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15 years ago

DDR3 OCT error pleaaase help

Please I have a ddr3 uniphy and when I analys I have this error pleaaase help me. I am using quartus 10.1 and a stratix iv Error: Termination logic block atom "ddr3_x16:the_ddr3_x16|ddr3_x16_c...
Altera_Forum's avatar
Altera_Forum
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15 years ago

You need to source the <variation_name>_pin_assignments.tcl script that will make the appropriate calibrated termination assignments to the IO. For instance:

set_instance_assignment -name IO_STANDARD "SSTL-15 CLASS I" -to mem_dq[0] -tag __my_ddr3

set_instance_assignment -name INPUT_TERMINATION "PARALLEL 50 OHM WITH CALIBRATION" -to mem_dq[0] -tag __my_ddr3

set_instance_assignment -name OUTPUT_TERMINATION "SERIES 50 OHM WITH CALIBRATION" -to mem_dq[0] -tag __my_ddr3

You have OCT block enabled but the IO are not set to use it.

Good luck,

-Chris